In all of the photos, he’s staring straight into the camera and he even plays peek-a-boo while resting in the ambulance.

He doesn’t seem to be able to sit still when he’s on set as he curiously touches props and plays doctor with a nearby person. He’s so playful that he makes a lot of people laugh when he’s filming.

The drama staff stated, “Sungyeol is very passionate when filming ‘D-Day.’ You can tell that he is when you’re on set with him. During free time, he makes other actors and staff laugh with his aegyo or continues practicing his lines.”

You can catch more of Sungyeol in “D-Day” which airs every Friday and Saturday at 8:30 p.m. KST.